”Based on the fact that, although I have known the song since it was recorded from Caroline Hughes in the early sixties I had trouble recognising the words and following the plot”

But isn’t that what has happened with songs since time immemorial - the words and, often, the tunes, have changed as the song is passed from person to person? Isn’t that how we’ve ended up with multiple ‘versions’ of songs which vary according to where they’re sung?

Isn’t that the ‘Folk Process’ so solemnly deified by adherents of ‘The 1954 Definition’?